Lower surface gradients are zero

amcloughlin801 · November 27, 2014, 14:56

Whenever I try to run continuous_adjoint.py on my case, the gradients for design variables 0-18 (ie the lower surface) are zero.

Does anyone know why this might be happening?

I've attached my config file and gradient output file.

Thanks
Aidan

Bachduong · November 27, 2014, 19:05

Hi
Could you please send me your mesh .SU2?

Here is my config file

amcloughlin801 · November 27, 2014, 19:23

Thanks for offering to take a look! Can you send me a private message with your email address and I'll send it to you? I can't upload *.su2 files as a message on here.

Cheers,
Aidan

Bachduong · November 27, 2014, 21:27

My email is van.fam@phystech.edu.
Thank you.

amcloughlin801 · November 28, 2014, 09:38

Hi Bachduong

I think there is a problem with my mesh, as my config is identical to the steady_rae2822 test case.

Have you had a look at the mesh?

Thanks
Aidan

Bachduong · November 28, 2014, 12:40

Unfortunately, the code doesn't convergence.

Bachduong · November 29, 2014, 06:12

Do you have mesh file in other format? I want to check mesh with Ansys Fluent.

economon · January 4, 2015, 04:56

Hi,

Were you guys able to straighten this issue out? Aidan, were you able to successfully run some of the optimization cases that come in the Test Cases folder to make sure that there isn't an issue with your SU2 installation?

Cheers,

Thomas D. Economon
SU2 lead developer

amcloughlin801 · January 4, 2015, 06:06

Hi Tom,

Unfortunately I wasn't able to fix it, no. The test cases work fine so I'm just using the test case mesh instead.

Cheers
Aidan

November 28, 2014, 09:38		#5
amcloughlin801 New Member Aidan Join Date: Jul 2014 Location: Belfast Posts: 17 Rep Power: 12	Hi Bachduong I think there is a problem with my mesh, as my config is identical to the steady_rae2822 test case. Have you had a look at the mesh? Thanks Aidan Last edited by amcloughlin801; November 28, 2014 at 11:20.

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November 27, 2014, 19:23		#3
amcloughlin801 New Member Aidan Join Date: Jul 2014 Location: Belfast Posts: 17 Rep Power: 12	Thanks for offering to take a look! Can you send me a private message with your email address and I'll send it to you? I can't upload *.su2 files as a message on here. Cheers, Aidan

November 27, 2014, 21:27		#4
Bachduong New Member Khiem Pham Join Date: Nov 2013 Posts: 23 Rep Power: 13	My email is van.fam@phystech.edu. Thank you.

November 28, 2014, 12:40		#6
Bachduong New Member Khiem Pham Join Date: Nov 2013 Posts: 23 Rep Power: 13	Unfortunately, the code doesn't convergence.

November 29, 2014, 06:12		#7
Bachduong New Member Khiem Pham Join Date: Nov 2013 Posts: 23 Rep Power: 13	Do you have mesh file in other format? I want to check mesh with Ansys Fluent.

January 4, 2015, 04:56		#8
economon Super Moderator Thomas D. Economon Join Date: Jan 2013 Location: Stanford, CA Posts: 271 Rep Power: 14	Hi, Were you guys able to straighten this issue out? Aidan, were you able to successfully run some of the optimization cases that come in the Test Cases folder to make sure that there isn't an issue with your SU2 installation? Cheers, Thomas D. Economon SU2 lead developer

January 4, 2015, 06:06		#9
amcloughlin801 New Member Aidan Join Date: Jul 2014 Location: Belfast Posts: 17 Rep Power: 12	Hi Tom, Unfortunately I wasn't able to fix it, no. The test cases work fine so I'm just using the test case mesh instead. Cheers Aidan